Display: Retina display: 15.4-inch (diagonal) LED-backlit display with IPS technology True Tone technology Processor: 2.6GHz 6-core Intel Core i7, Turbo Boost up to 4.5GHz 2.3GHz 8-core Intel Core i9, Turbo Boost up to 4.8GHz Memory: 16GB of 2400MHz LPDDR4 onboard memory Storage: 256GB PCIe-based onboard SSD 512GB PCIe-based onboard SSD Graphics: 2.6GHz – Radeon Pro 555X with 4GB of GDDR5 memory and automatic graphics switching Intel UHD Graphics 630 2.3GHz – Radeon Pro 560X with 4GB of GDDR5 memory and automatic graphics switching Intel UHD Graphics 630 Wireless: Wi-Fi 802.11ac Bluetooth 5.0 Battery: Up to 10 hours wireless web Other: 720p FaceTime HD camera Backlit keyboard with ambient light sensor USB-C Headphone port Touch Bar with integrated Touch ID sensor